/*
 * Copyright 2013-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.cloud.endpoint;

import java.util.Arrays;
import java.util.Collection;
import java.util.Set;

import org.springframework.boot.actuate.endpoint.AbstractEndpoint;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.cloud.context.refresh.ContextRefresher;
import org.springframework.jmx.export.annotation.ManagedOperation;
import org.springframework.jmx.export.annotation.ManagedResource;

/**
 * @author Dave Syer
 * @author Venil Noronha
 */
@ConfigurationProperties(prefix = "endpoints.refresh", ignoreUnknownFields = false)
@ManagedResource
public class RefreshEndpoint extends AbstractEndpoint<Collection<String>> {

	private ContextRefresher contextRefresher;

	public RefreshEndpoint(ContextRefresher contextRefresher) {
		super("refresh");
		this.contextRefresher = contextRefresher;
	}

	@ManagedOperation
	public String[] refresh() {
		Set<String> keys = contextRefresher.refresh();
		return keys.toArray(new String[keys.size()]);
	}

	@Override
	public Collection<String> invoke() {
		return Arrays.asList(refresh());
	}

}
